"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
Detail Specification: 9/17/2015
P/N 2450AT18D0100
Page 1 of 6
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
General Specifications
Part Number
Frequency (MHz)
Peak Gain
Average Gain
Return Loss
Operating Temperature
No.
1
2
2450AT18D0100
2400 - 2500
1.5 dBi typ. (XZ-total)
-1.0 dBi typ. (XZ-total)
10.0 dB min.
-40 to +125°C
Total Radiation Efficiency1
1
Efficiency measured on 2450AT18D0100-EB1SMA 40x20mm EVB on page 2
Terminal Function
Feeding Point
GND
3
4
2W max. (CW)
50 Ω
3,000
-40 to +85°C
72%
Input/Output Power
Impedance
Reel Quantity
Storage Temp
4
3
1
2
GND
GND
Mechanical Specifications
L
W
T
a
b
0.126
0.063
0.047
0.012
0.020
In
±
±
±
±
±
0.008
0.008
0.008
.004/-.008
0.008
3.20
1.60
1.20
0.30
0.50
mm
± 0.20
± 0.20
± 0.20
± 0.1/-0.2
± 0.20
b
w
b
T
a
L
Need help designing the antenna in? Use our antenna design services! www.johansontechnology.com/ipcantennaservices
2 Free layout reviews and if you need us to tune and characterize our antenna on your design (anechoic chamber) we can do that too (lab fee may apply for the latter).
Mounting Considerations 1: Standard Rectangular Layout
Mount these devices with the red square mark facing up. Otherwise, the antenna
will not operate as intended.
Solder Resist
1.0
2.0
1.0
0.6
Ground
0.7
Land
0 Ohm
0.6
Ground
50Ω Trace (Grounded
CPWG type is preferred)
6.0
4.1
GND Vias
Matching Circuits2
Want the layout file of this? Send
us a message at:
No ground, metal PCB
layers, or other metallic
Ground
4.0
www.johansontechnology.com/ask-a-question
components like
batteries directly
underneath antenna!
2
It is recommended that the designer leave available slots for a "pi" (or shunt-series-shunt) network, even if all slots won't be used, this will prepare the PCB for the
final mass production values of the matching circuit. The antenna matching network values above are used when antenna is mounted on Johanson's evaluation
board. The matching values on client’s PCB will be different. Go to:
http://johansontechnology.com/tuning and see how to obtain the new values yourself if you have a network analyzer.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
P/N 2450AT18D0100
Page 2 of 6
Detail Specification: 04/04/12
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
Mounting Considerations 1: Standard Rectangular Layout (continued)
Via
Matching Circuits
Orderable EVB p/n (comes with
1 female SMA connector
mounted on the opposite side):
)
6.0
2450AT18D0100-EB1SMA
We offer 2 free layout reviews as well as
antenna tuning and characterization
services (lab fee may apply). For more
info go to:
4.0
No
20mm
Measured total radiated
efficiency of
2450AT18D0100 on
this EVB: 72%
Feeding Line
Ground Vias (put these all around your PCB, they will increase the antenna's
www.johansontechnology.com/ipcantennaservice
40mm
Want the layout file of the above? Send us a message at: www.johansontechnology.com/ask-a-question
To order a pre-tuned 50Ω EVB with a female SMA connector you see above Click here:
www.johansontechnology.com/request-a-sample
Reference p/n: 2450AT18D0100-EB1SMA
Mounting Considerations 2: Small clearance or "thin edge" applications
Solder Resist
1.0
Land
Units in
mm
Reserve for Pi-matching circuit3
2.0
1.0
0.6
No ground or metals in
yellow area and must be
located somewhere in the
middle of the assembly, not
the corner
0.6
0.7
2.8
Want the layout file of this
example? Send us a message at:
0.6
*
3.4
0.6
1.5
3.4
www.johansontechnology.com/ask-a-question
Ground
8.0
3
Blue Area = LCD/Metal/CAN/GND/Battery etc.
It is recommended that the designer leave
available slots for a "pi" (or shunt-seriesshunt) network, even if all slots won't be used,
this will prepare the PCB for the unpredictable
final mass production version of the matching
circuit. The antenna matching network values
above are used when antenna is mounted on
Johanson's evaluation board. The matching
values on client’s PCB will be different.
Note: There's no orderable EVB available for the above reference "Mounting Considerations 2" reference design
Johanson Technology, Inc. reserves the right to make design changes without notice. Please confirm the specifications
and delivery conditions when placing your order. All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
Detail Specification: 04/04/12
P/N 2450AT18D0100
Page 3 of 6
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
Mounting Considerations 3: Thin Edge + Circular PCB applications
No ground, metal PCB
layers, or other metallic
components like batteries
and displays directly
underneath antenna!
50Ω Trace (Grounded
CPWG type is preferred)
Want the layout file of this
example? Send us a message at:
www.johansontechnology.com/ask-a-question
Ground
Note: There's no orderable EVB available for the above reference "Mounting Considerations 3" reference design
Mounting Considerations 4: Chip antenna fed from the right
Matching Circuits: It is
recommended that the
designer leave available
slots for a "pi" (or shuntseries-shunt) network, even
if all slots won't be used,
this will prepare the PCB
for the final mass
production values of the
antenna matching securing
)
Ground
Plane
Note: There's no orderable EVB available for the above reference "Mounting Considerations 4" reference design
Johanson Technology, Inc. reserves the right to make design changes without notice. Please confirm the specifications
and delivery conditions when placing your order. All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
P/N 2450AT18D0100
Page 3 of 5
Detail Specification: 04/04/12
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
Typical Return Loss (S11) Electrical Performance (T=25°C)
0
dB(S(1,1))
-10
m1
freq=2.400GHz
dB(S(1,1))=-13.935
m2
freq=2.500GHz
dB(S(1,1))=-14.774
m1
m2
m3
freq=2.450GHz
dB(S(1,1))=-24.894
-20
m3
-30
2.0
2.2
2.4
2.6
2.8
3.0
freq, GHz
Johanson Technology, Inc. reserves the right to make design changes without notice. Please confirm the specifications
and delivery conditions when placing your order. All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
Detail Specification: 9/17/2015
P/N 2450AT18D0100
Page 4 of 5
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
Typical EM Radiation Performance (T=25°C)
Typical Radiation Patterns
XY-V/XY-H
XY cut @2.45GHz
Vertical
Horizontal
Z
180°
X
270°
90°
2450AT18D0100-EB1SMA
Evaluation Board as AUT for
all 3 scans
Y
0°
XZ-V/XZ-H
XY-cut scanning direction
XZ cut @2.45GHz
Vertical
Horizontal
Y
180°
X
270°
90°
Z
0°
XZ-cut scanning direction
)
YZ-V/YZ-H X
180°
YZ cut @2.45GHz
Vertical
Horizontal
Y
270°
90°
Z
0°
YZ-cut scanning direction
Johanson Technology, Inc. reserves the right to make design changes without notice. Please confirm the specifications
and delivery conditions when placing your order. All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved
"High Frequency Ceramic Solutions"
2.45 GHz SMD Antenna, EIA 1210, Detuning resilient, Edge Mount Design
Detail Specification: 9/17/2015
P/N 2450AT18D0100
Page 5 of 5
This antenna is optimal for edge middle mounting; rectangular and circular PCB shape applications, go to pages 2-4 for more info.
Part Number Explanation
P/N Suffix
Packing Style
EVB p/n
Recommended Storage Conditions of
uninstalled product still on T&R
Suffix = S
Bulk
Suffix = E
T&R
2450AT18D0100-EB1SMA
eg.2450AT18D0100S
e.g.. 2450AT18D0100E
+5 ~ +35 °C, Humidity 45~75%RH, 18 mos. Max
Antenna layout review, tuning, and characterization services
www.johansontechnology.com/ipcantennaservices
More SMD Chip Antennas at:
www.johansontechnology.com/antennas
Soldering Information
www.johansontechnology.com/ipcsoldering-profile
Antenna layout and tuning techniques (How to obtain the new antenna matching values)
www.johansontechnology.com/tuning
Packaging information
www.johansontechnology.com/ipcpackaging.html
RoHS Compliance
www.johansontechnology.com/technical-notes/rohs-compliance.html
MSL Info
www.johansontechnology.com/technical-notes/msl-rating.html
P/N Explanation and Breakdown
www.johansontechnology.com/ipc-pn-explained
Johanson Technology, Inc. reserves the right to make design changes without notice. Please confirm the specifications
and delivery conditions when placing your order. All sales are subject to Johanson Technology, Inc. terms and conditions.
Technical Author: Manuel Carmona www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 3.0
2015 Johanson Technology, Inc. All Rights Reserved